object MyTest extends Application {
  trait T1 {
    def foo() = println( "T1.foo()" )
  }
  trait T2 {
    def foo() = println( "T2.foo()" )
  }

  class Base12 {
  }
  
  class C1 extends Base12 with T1 with T2 {
  }

  vac = new C1
  c.foo()

}